2130003 has 8 divisors (see below), whose sum is σ = 3155600. Its totient is φ = 1419984.

The previous prime is 2130001. The next prime is 2130013. The reversal of 2130003 is 3000312.

It is a happy number.

It is not a de Polignac number, because 2130003 - 2¹ = 2130001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

2130003 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (2130001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39418 + ... + 39471.

It is an arithmetic number, because the mean of its divisors is an integer number (394450).

2^2130003 is an apocalyptic number.

2130003 is a deficient number, since it is larger than the sum of its proper divisors (1025597).

2130003 is an equidigital number, since it uses as much as digits as its factorization.

2130003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78898 (or 78892 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 9.

The square root of 2130003 is about 1459.4529797153. The cubic root of 2130003 is about 128.6648955284.

Adding to 2130003 its reverse (3000312), we get a palindrome (5130315).

The spelling of 2130003 in words is "two million, one hundred thirty thousand, three".